Boiler-tube crimper.



J. J. KERRIGAN.

- BOILER TUBE CRIMPBR. I

1,042,1 Q Patented 002221212..

1 5 the; tubes;`

40l .view of'Fig; l'.

.UN-35m@ swims rirgenfr ore-ion.

JOHN J. KERRIGAN, or PHILADELLPHA, PENNSYLVANIA.

BOILER-TUBE CBIMPER.

o callwliomit may concern:

lie 'it known that I, 'JOHN J. KERRIGAN, e citizen of the United States,residing :it Philadelphie, vin the county ot Philadelphia .3 und Stteor' Pennsylvanirghave invented certain nevi and useful'improvements inloilerTube Criinpers, oi' which the following; is specification.

luy f "invention relates to improvements in lo boiler tube ciiimpers andhas for en object to, provide e device this chnracterjvhich will crimptlie ends of'boiler tubes and fxllowv the sume to'be removed from theheador the head from the tubes, Without destroying Eeretofore when a.tribe or vheed 'became defective or for some other reason -it wasdesii-ed to remove the seme from the boiler, it ,nies inecessary to cutthe tubelongitudi-t 3o nn'lly and'then bend'the ends of the tubeinwardly, J@hereby destroying the tube. `With mylhvent-ionl provide elever which slm'ply b'endfs'the ends of the tube inwardly Withouthaving-to cut. Vthe salme,4 thus allowing the A. further Objectis gtoprovide a device of this character which'is simple end cheep to'manuf-.ic'tnrmyet willeiciently do the Work for which itis'intended.'

.*With these and other objects in view, the? -invention consists incertain novel features of construction und combinations und .er`lrengementsof parts, as lWill be more fully hereinafter described andpointed out in the Clarins.

' gle piece of metal and comprises n handle 1 und an enlarged heed 2,.The head 2 has a curved groove therewith which the tube 8 is positionedand divides the head into en; outer and 'an inner MW. The inner Jaw 4.

Specicftion of Letters Patent.

Application led April 30,

rammed oer. e2, wie. 1912. serial N0. 694,153.

is longer than the outer jew 5 and Ais beveed from i'ts'end to e pointdirectly below the end of the outer jew 5, forming a fulcrum 6. rlhisinsures the end of the tube being bent uniformly throughout itscircumference and compels the metal of the tube 'between the outer jawand the inner jeyv to'bend et the fulcrum point 6. The edges ofi-he head2 ere beveled inwardly from their outer to their inner edges esshoWneol', thereby making the 'jew 5 of:

greater Width than the jaw 4. In operation, thetube is irstheated andthen my improved device is placed thereon ywith the ,end of the tubeinserted in. the,` groove between the jaws 4 rand 5 as shown Fig.' 1.-:The handle l is then moved uponl .the fulcrum 6 'and thismovementvvl'licause the tubetobend at' a. point* Wberefthefend' .ofjewefcolries in Contact with thevill ofl 'the tribe. @Alfter thetubehasbeen Vcrim ed at 'one point, the device is movedf farterN`veroun'dzon the tube and the operetibnreparted,... When the entirecireum*fereiice.ofv -thet-ube hes'been so treated, itivilihavethe.appearance shown in Fig. 4, andthe tube mey easily vbe removedfrom'jtheboiler. When ellof 'the tubes are thus crimped', theheafdmay'be removed. i

fthe generel' form anderrangement of. parts described Wit-houtdepaitingfrom my invention, and hence I do not limit my selfto the 'precisedetails set forth, but considermvself at liberty to make such changesand alteraltionses fairly fall Within the spirit and? scope of theappended claims.

Having thus described my invention, what I clim es new and desire tosecure by Let.- ters Ptent'i's: y

1. l device of the character described,

comprising@ handle, and a heed thereon,l saidhead having a curved groovetherein,

dividing the said head into an inner and an outer jaw, said inner jawlonger than the outer jaw and beveled from its end une4 point directlybelow Whe end' of the vouterj'ew, substantially as described. l 2. Adevice of `the character described,

yVariousslight changes might be made in fo1:,...|f-ir,g parallel Lubegripping xed jaws name to this specifi-:ation in the presence of curvedtransversely, the uwer Jaw onger two subscmbmg wltnesses.

than the outm inw awbevevd at the end 1 A .g 4 A. v ilvmng d lulmjm1pomf blow the outer JOHY J KERRIGAY and o1 the outer 5am', subsmnilalyas de Witnesses: Scrlbcd. TVM. F. OBERHUMA.

In testimony whereof have bignpd my HAs. E. Ports.

